Datasheet
Electrical Characteristics
MC9S08LG32 Series Data Sheet, Rev. 9
Freescale Semiconductor 23
Figure 15. Typical Crystal or Resonator Circuit: High Range and Low Range/High Gain
3 D Feedback resistor
• Low range (32 kHz to 100 kHz)
• High range (1 MHz to 16 MHz)
R
F
—
—
10
1
—
—
M
4 D Series resistor
• Low range, low gain (RANGE = 0, HGO = 0)
• Low range, high gain (RANGE = 0, HGO = 1)
R
S
0
100
k
5 D Series resistor
• High range, low gain (RANGE = 1, HGO = 0)
• High range, high gain (RANGE = 1, HGO = 1)
8 MHz
4 MHz
1 MHz
R
S
—
—
—
0
0
0
0
10
20
k
6 T Crystal start-up time
3, 4
• Low range (HGO = 0)
• Low range (HGO = 1)
• High range (HG0 = 0)
5
• High range (HG0 = 1)
5
t
CSTL-LP
t
CSTL-HGO
t
CSTH-LP
t
CSTH-HGO
—
—
—
—
500
3570
4
4
—
—
—
—
ms
7 D Square wave input clock frequency (EREFS = 0, ERCLKEN = 1)
• FEE or FBE mode
2
• BLPE mode
f
extal
0.03125
0
—
—
5
40
MHz
1
Data in Typical column was characterized at 5.0 V, 25 C or is typical recommended value.
2
When ICS is configured for FEE or FBE mode, input clock source must be divisible using RDIV to within the range of 31.25 kHz
to 39.0625 kHz.
3
This parameter is characterized and not tested on each device.
4
Proper PC board layout procedures must be followed to achieve specifications.
5
4 MHz crystal
Table 10. Oscillator Electrical Specifications (Temperature Range = –40 C to 105 C Ambient) (continued)
Num C Characteristic Symbol Min Typ
1
Max Unit
XOSC
EXTAL XTAL
Crystal or Resonator
R
S
C
2
R
F
C
1